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US1499985A Expired / Lapsed US ⏱️ 0.0 years remaining

Sheet-steel article and method of making same

Assignee: KIRSCH Manufacturing Co
•
Filing: 1924-02-04
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Granted: 1924-07-01
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Expires: 1944-02-04
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Abstract

No abstract record available.

Inventors

  • 👤 Charles W Kirsch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 16:41
CPC Classifications
B; B21; B21D; B21D53/00; B21D22/00; B21D22/02; B21D22/08; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1459; Y10T24/1461; Y10T24/1463; Y10T24/1467; Y10T428/00; Y10T428/12; Y10T428/12354; Y10T428/1241; Y10T428/12417; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1927-07-01 1927-12-31 1928-07-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1931-07-01 1931-12-31 1932-07-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1935-07-01 1935-12-31 1936-07-01 $7700.00 Window Closed / Lapsed

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